CN103428784B - Satellite communication network management and intelligent dispatching system and carrier switch method thereof - Google Patents

Satellite communication network management and intelligent dispatching system and carrier switch method thereof Download PDF

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Publication number
CN103428784B
CN103428784B CN201310241727.4A CN201310241727A CN103428784B CN 103428784 B CN103428784 B CN 103428784B CN 201310241727 A CN201310241727 A CN 201310241727A CN 103428784 B CN103428784 B CN 103428784B
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parameter
frequency
carrier
satellite
communication network
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CN103428784A (en
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胡学工
周兆滨
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BEIJING SHANZHU TECHNOLOGY Co Ltd
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BEIJING SHANZHU TECHNOLOGY Co Ltd
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Abstract

The invention provides and a kind ofly automatically realize bandwidth scheduling, the satellite communication network management of message capacity management and network monitoring and intelligent dispatching system and carrier switch method thereof, described satellite communication network management and intelligent dispatching system comprise handover module and log management module in network management module, Satellite Management module, modem management module, antenna management module, frequency spectrograph module, intelligent scheduling module, band.Satellite communication network provided by the invention management and intelligent dispatching system are suitable for the situations such as military affairs, emergent, disaster relief and rescue, dispatched the communication link setting up both sides, ensure the connection setup of emergency situation by satellite communication; The operation cost of satellite communication is reduced according to the priority bandwidth on demand of communication service; At terminal presentation facility information state with in Virtual Spectrum Analyzer display communication carrier case, unified monitoring and management can be facilitated.

Description

Satellite communication network management and intelligent dispatching system and carrier switch method thereof
Technical field
The present invention relates to the management of a kind of satellite communication network and intelligent dispatching system and its carrier switch method, particularly, relate to and a kind ofly can realize setting up communication link between website and effectively utilize the satellite communication network management of satellite repeater resource and intelligent dispatching system and its carrier switch method.
Background technology
Domesticly at present automatically do not set up the management software that satellite communication link carries out satellite communication, setting up communication link needs modem hardware manually to input the handoff parameter etc. of needs, manually carry out communication link foundation, and cannot effectively control in the middle of communication.And the allocated bandwidth of communication link can not be carried out according to service priority.Effectively can not utilize the bandwidth resources of satellite repeater like this, and can not communicate timely and effectively for urgency traffic.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art part, the object of the invention is to realize the initiation to satellite communication process, controlling and terminating, and realizing bandwidth on demand.Satellite communication network management and intelligent dispatching system calculate the parameters setting up link, and send the order of setting up communication link to modulator-demodulator.After setting up communication link, monitoring and controlling can be carried out to FLCarrier.According to the priority of communication link carrier, satellite communication network management and intelligent dispatching system judge which communication carrier more needs larger bandwidth to communicate, for different priority traffic carrier waves calculates corresponding bandwidth parameter value.
Therefore, one object of the present invention is provide a kind of satellite communication network management and the intelligent dispatching system that can realize setting up communication link between website and effectively utilize satellite repeater resource, and described satellite communication network management and intelligent dispatching system comprise:
Network management module, for managing each website in network, create, edit and delete, and for the state of checking each website and parameter information, and operates each website;
Satellite Management module, for creating, revise and deleting satellite, transponder and frequency pool;
Modem management module, for checking and monitor state, the parameter information of modulator-demodulator, and arranges and revises the parameter of modulator-demodulator;
Antenna management module, for creating antenna, Up/Down Conversion device and binding modem device to Up/Down Conversion device;
Frequency spectrograph module, for showing carrier wave figure and relevant parameter information thereof after link establishment;
Intelligent scheduling module, for the priority adjustment bandwidth according to each website, and calculates the bandwidth range switching and use;
Handover module in band, for automatically making corresponding adjustment according to the change of state of affairs, and switches to the communications status of low time delay two-forty by the communications status of high time delay low rate; After having switched, link release bandwidth that described satellite communication network manages and intelligent dispatching system is dismantled automatically; Meanwhile, specify the website needing to switch according to specific needs and carry out manual switchover; And
Log management module, for recording the warning message of the operation information of all modules and the alarm of modulator-demodulator and Dynamic System mistake in the management of described satellite communication network and intelligent dispatching system.
Preferably, described modem management module finds modem device of reaching the standard grade, and being stored to database, modem parameter reads by reading modem data storehouse parameter list and is presented in the network management interface of described network management module by described network management module.
Preferably, described antenna management module creation antenna equipment is also stored into database, and antenna equipment parameter is read by the antenna equipment tables of data reading described antenna management module and is presented in the network management interface of described network management module by described network management module.
Preferably, described modem management module provides modem device parameter for handover module in described band, and described modem device parameter is used for carrying out carrier switch and relevant handover parameter calculates; Described network management module builds virtual network and website, in the band of website, the carrier switch of handover module is prepared; Described Satellite Management module creation satellite, transponder and frequency pool, for handover module in described band provides satellite inversion frequency parameter, participate in the calculating of carrier switch relevant parameter; Described antenna management module creation antenna, Up/Down Conversion device, for handover module in described band provides frequency converter local frequency parameter, participate in the calculating of carrier switch relevant parameter.
Preferably, after in described band, handover module switched carrier completes, the modem parameter that the switched carrier in described modem management module is relevant can carry out change and upgrade.
Preferably, according to the frequency pool parameter information of described Satellite Management module creation, in described frequency spectrograph module, display frequency pond visualization interface, is used for showing the waveform of switched carrier.
Preferably, after handover module carries out carrier switch in described band, the waveform of switched carrier will be shown in described frequency pool interface in frequency spectrograph module.
Preferably, in described band, handover module carries out in carrier switching process, the frequency pool scope of resource that described intelligent scheduling module provides according to handover module in described band, carrier switch request handoff parameter and guaranteed rate parameter, carry out the adjustment process of intelligent scheduling function, afterwards the carrier bandwidths after adjustment process is passed to handover module in described band, carry out carrier switch operation.
Preferably, described log management module is for recording and showing the various operations in antenna management module, Satellite Management module and network management module, and for the specifying information of the various operation of recording and show in band in handover module and carrier switch, described specifying information comprises the website sending carrier wave, the device address sending carrier wave, the data rate of switched carrier, modulation type, forward error correction code check, forward error correction type, IF spot, RF spot and power parameter information.
Preferably, described network management module comprises management function, the interior Prearranged elements of band in Distribution List functional unit, application handoff functionality unit, tactful defined function unit, with, diagnosis switches installation unit and diagnosis switches reset cell.
Preferably, described Distribution List functional unit is used for the subnet address arranging the other multiple website communicated with its foundation in network management module, automatically switch simultaneously in execution, the website link in the subnet address also automatically set up and define in described Distribution List functional unit.
Preferably, described application handoff functionality unit is used for manually carrying out carrier switch operation, arranging the call parameter of carrier switch targeted sites and switched carrier, and sets up communication link between each website.
Preferably, the policing parameter used when described tactful defined function unit is for arranging switched carrier; When enabling the policing parameter set, the management of described satellite communication network and intelligent dispatching system automatically verify switching rate parameter value whether in the data rate ranges set by strategy definition when carrying out carrier switch; If in this data rate ranges, continue carrier switch, otherwise the management of described satellite communication network and intelligent dispatching system can stop handover operation, and provide prompting.
Preferably, in described with, management function is used for carrying out the setting of band intrinsic parameter to each website, and in described with, management function comprises forward path setting unit and return path setting unit.
Preferably, described forward path setting unit is for arranging the parameter of modulator-demodulator and binding modulator and demodulator, and by arranging described parameter, the communication link that main website website is initiated and remote terminal are set up; Described return path setting unit is for arranging the parameter of modulator-demodulator and binding modulator and demodulator, and by arranging described parameter, the communication link that remote terminal website is initiated and main website set up.
Preferably, described return path setting unit also comprises Prearranged elements in band, and in described band, Prearranged elements is for arranging guarantee data rate parameter value and the relevant handover parameter of switched carrier; When website priority is lower than another website priority time, after carrier switch operation, the bandwidth that described satellite communication network management and intelligent dispatching system distribute to the low website of priority can not be less than the bandwidth value ensureing that data rate calculates, to ensure the service communication of the low website of described priority.
Preferably, described diagnosis switching installation unit is used for carrying out manual carrier switch, to detect the communication link treatment of current site and main website.
Preferably, described diagnosis switches reset cell and switches for described diagnosis of dismantling the carrier link installed, and handoff parameter is reduced to the initial condition before switching.
Preferably, the management of described satellite communication network and the intelligent dispatching system communication link set up between website comprise and automatically set up communication link and manually set up communication link.
Wherein, described communication link of automatically setting up comprises: by the communication equipment in website as visual telephone, be connected on corresponding network, there is the modulator and demodulator equipment of each website in a network, like this, when carrying out calling out between website with visual telephone, described satellite communication network management and intelligent dispatching system can receive the request of connecting, after process request, will communication link instruction be set up send to the modulator of current site, by modulator, carrier signal be sent; Receiving station receives carrier signal, and both sides carry out video calling; After both sides hang up the telephone, communication link is dismantled automatically, and transmitting terminal modulator and receiving terminal demodulator return to initial condition.
Wherein, described communication link of manually setting up comprises: the website selecting needs communication in described satellite communication network management and intelligent dispatching system, arranges relevant parameter, and manual button click initiates the action of setting up communication link; Manual cancellation communication, described satellite communication network management and intelligent dispatching system will be dismantled current communication link; Transmitting terminal modulator and receiving terminal demodulator return to initial condition; Before formally communicating with Target Station, check whether communication link can normally be set up.
According to a further aspect in the invention, present invention also offers and a kind ofly can realize setting up communication link between website and effectively utilize the satellite communication network management of satellite repeater resource and the carrier switch method of intelligent dispatching system, described carrier switch method comprises manual switchover and automatic switchover.
Wherein, described manual switchover comprises the steps:
(1-1) manually handoff parameter is set.The foundation of communication link is carried out according to the handoff parameter arranged.Described handoff parameter comprises data rate, forward error correction code check, modulation system and modulation type;
(1-2) transmit described handoff parameter and application handover request, by satellite link, described handoff parameter and application handover request are transferred to the management of described satellite communication network and intelligent dispatching system;
(1-3) receive and again transmit data, utilizing described satellite communication network manages and intelligent dispatching system receives described handoff parameter and application handover request, carry out the foundation of communication link; After link establishment completes, and switch relevant modem device and pass through satellite link and manage and the current state information of intelligent dispatching system sending modem equipment and parameter information to described satellite communication network in real time;
(1-4) process and storage data, utilize the data that described modem device transmits, by data-mapping, the data of transmission are stored in database server, for the frequency spectrograph module of the management of described satellite communication network and intelligent dispatching system and modem management module provide data source; And
(1-5) read and show data, by described frequency spectrograph module by the digital independent that is stored in described database server out, and in interface display carrier waveform and parameter values, described parameter values comprises initiates site name, distribution bandwidth, data rate, character rate, working method, launching electrical level, tranmitting frequency, by described modem management module by the digital independent that is stored in described database server out, show in real time in the list of described modem management module; And
(1-6) to dismantle communication link, release bandwidth resources, manually to dismantle ongoing satellite communication link, the instruction of link of dismantling to be sent to by satellite link and switches relevant modem device by the management of described satellite communication network and intelligent dispatching system, after in each switching, modem device receives instruction, be altered to the original equipment parameter do not switched from handoff parameter, and discharge satellite bandwidth resource; Simultaneously, parameter information and the running status of current device is sent to described satellite communication network management and intelligent dispatching system, described satellite communication network management and intelligent dispatching system receive parameter information and the running status of described modem device, upgrade system database and system interface parameter display.
Wherein, described automatic switchover comprises the steps:
(2-1) information parameter of TOS value is set, needing the transmitting terminal carrying out the modem device automatically switched, the information parameter of identical TOS value is set, the span of TOS value carries out value between 0 ~ 253, numerical value is 0 ~ 63, wherein: the load of numerical value to be 0 be ECM switches, numerical value is 1 is predetermined switching, numerical value be 2 be audio frequency, numerical value be 3 be video, numerical value is 4 to 63 is all system reserved fields, and 64 ~ 253 is user-defined numerical value, for the carrier switch of TOS value; The TOS information arranged in modem device, except arranging TOS value, also will arrange data rate parameter when carrier switch, switching type numerical value and time-out time; Meanwhile, modem device institute terminal equipment is in a network being connected as visual telephone, the information parameter of the TOS value needing setting identical with modem device;
(2-2) terminal carries out communication link foundation, and in network, terminal such as visual telephone carries out call conversation to carry out the foundation of communication link, and modem device detects default specific T OS value;
(2-3) transmit handoff parameter and application handover request, after modulator-demodulator detects default specific T OS value, by satellite link, handoff parameter and application handover request are transferred to satellite communication network management and intelligent dispatching system;
(2-4) receive and again transmit data, utilizing described satellite communication network manages and intelligent dispatching system receives described handoff parameter and application handover request, carry out the foundation of communication link; After link establishment completes, described to switch relevant modem device and pass through satellite link and manage and the current state information of intelligent dispatching system sending modem equipment and parameter information to described satellite communication network in real time;
(2-5) process and storage data, utilize the data that described modem device transmits, by data-mapping, the data of transmission are stored in database server, for the frequency spectrograph module of the management of described satellite communication network and intelligent dispatching system and modem management module provide data source; And
(2-6) read and show data.By described frequency spectrograph module by the digital independent that is stored in described database server out, and in interface display carrier waveform and parameter values, described parameter values comprises initiates site name, distribution bandwidth, data rate, character rate, working method, launching electrical level and tranmitting frequency parameter; By described modem management module by the digital independent that is stored in described database server out, show in real time in the list of described modem management module; And
(2-7) to dismantle communication link, release bandwidth resources, described network-termination device such as visual telephone is hung up the telephone, namely to carry out dismantling the action of communication link, modem device in network can detect the link action of dismantling of terminal, send to satellite communication network management and intelligent dispatching system link request of dismantling by satellite link, after satellite communication network management and intelligent dispatching system are received by satellite link, the instruction of link of dismantling is sent to and switches relevant modem device, after in each switching, modem device receives instruction, the original equipment parameter do not switched is altered to from handoff parameter, and discharge satellite bandwidth resource, simultaneously, parameter information and the running status of current device is sent to satellite communication network management and intelligent dispatching system, satellite communication network management and intelligent dispatching system receive parameter information and the running status of described modem device, upgrade system database and system interface parameter display.
Preferably, data rate (DataRate) parameter, forward error correction code check (FECRate) parameter and modulation type (ModType) parameter in the packet that the management of described satellite communication network and intelligent dispatching system are sent according to modem device, calculate the bandwidth parameter launching carrier wave according to formula (1):
Bandwidth=[data rate/(the numerical value * forward error correction code check that modulation type is corresponding)] * rolloff-factor (1)
Wherein, rolloff-factor=1.3;
The numerical value that modulation type is corresponding is as follows:
BPSK：1；QPSK：2；OQPSK：2；8PSK：3；
8QAM：3；16QAM：4。
Preferably, the local frequency of radio frequency parameter, corresponding satellite inversion frequency and frequency converter in the packet that the management of described satellite communication network and intelligent dispatching system are sent according to modulator device or demodulator device, calculates the intermediate frequency parameters of switched carrier according to formula (2), (3), (4) or (5); Wherein:
If frequency reversion attribute is unlocked, calculate the intermediate frequency parameters of demodulator device according to formula (2):
This Zhen Pin of intermediate frequency parameters=frequency converter Shuais – (She is Can Shuo – satellite inversion frequency frequently) (2)
If frequency reversion attribute is not unlocked, calculate the intermediate frequency parameters of demodulator device according to formula (3):
Intermediate frequency parameters=She Can Shuo – satellite conversion frequently Pin Shuais – frequency converter local frequency (3)
If frequency reversion attribute is unlocked, calculate the intermediate frequency parameters of modulator device according to formula (4):
Intermediate frequency parameters=this Zhen of frequency converter Pin Shuais – radio frequency parameter (4)
If frequency reversion attribute is not unlocked, calculate the intermediate frequency parameters of modulator device according to formula (5):
Intermediate frequency parameters=She is Can Shuo – frequency converter local frequency (5) frequently.
Preferably, the local frequency parameter of packet intermediate frequency parameters, corresponding satellite inversion frequency and frequency converter that the management of described satellite communication network and intelligent dispatching system are sent according to modulator or demodulator device, calculates the radio frequency parameter of switched carrier according to formula (6), (7), (8) or (9); Wherein:
If frequency reversion attribute is unlocked, calculate the radio frequency parameter of demodulator device according to formula (6):
Radio frequency parameter=this Zhen of frequency converter Pin Shuais – intermediate frequency parameters+satellite inversion frequency (6)
If frequency reversion attribute is not unlocked, calculate the radio frequency parameter of demodulator device according to formula (7):
Radio frequency parameter=intermediate frequency parameters+frequency converter local frequency+satellite inversion frequency (7)
If frequency reversion attribute is unlocked, calculate the radio frequency parameter of modulator device according to formula (8):
Radio frequency parameter=this Zhen of frequency converter Pin Shuais – intermediate frequency parameters (8)
If frequency reversion attribute is not unlocked, calculate the radio frequency parameter of modulator device according to formula (9):
Radio frequency parameter=intermediate frequency parameters+frequency converter local frequency (9).
Preferably, first calculate the changes in data rate value of switched carrier and the Ebnt changing value of switched carrier, then calculate the transmit power parameter of modulator transmitting needed for carrier signal; Wherein:
1) according to the data rate of switched carrier and the data rate of the front initial condition of switching, the changes in data rate value of switched carrier is calculated according to formula (10): the changes in data rate value=10*log of switched carrier 10(data rate of switched carrier)-10*log 10(switching the data rate of front initial condition) (10);
2) according to switching Ebnt parameter value and initial Ebnt parameter value, the Ebnt changing value of switched carrier is calculated according to formula (11); Wherein, according to the parameter combinations inquiry Ebnt table of switched carrier, switched Ebnt parameter value accordingly, then shown according to initial parameter query composition Ebnt before switching, obtained corresponding initial Ebnt parameter value;
Ebnt changing value=initial Ebnt the parameter value (11) of switching Ebnt Can Shuo Zhi – of switched carrier
3) according to the changes in data rate value of original equipment performance number, switched carrier and the Ebnt changing value of switched carrier, transmit power parameter is calculated according to formula (12):
The Ebnt changing value (12) of the changes in data rate value+switched carrier of transmit power parameter=original equipment performance number+switched carrier.
Wherein, described original equipment performance number is the signal intelligence according to the departure carrier communication situation of main website modulator-demodulator and small station burst immigration carrier wave, and that carries out the power parameter of modem device arranges adjustment, arranges an initial power parameter value.Preferably, described original equipment performance number is-40dbm.
Therefore, satellite communication network provided by the invention management and intelligent dispatching system are suitable for the situations such as military affairs, emergent, disaster relief and rescue, dispatched the communication link setting up both sides, ensure the connection setup of emergency situation by satellite communication; The operation cost of satellite communication is reduced according to the priority bandwidth on demand of communication service; At terminal presentation facility information state with in Virtual Spectrum Analyzer display communication carrier case, unified monitoring and management can be facilitated.
Accompanying drawing explanation
Fig. 1 is the structural framing figure of satellite communication network management and intelligent dispatching system;
Fig. 2 is the flow chart of the carrier switch method of satellite communication network management and intelligent dispatching system.
Description of reference numerals is as follows:
Network management module 1, Satellite Management module 2, modem management module 3, antenna management module 4, frequency spectrograph module 5, intelligent scheduling module 6, handover module 7 in band, log management module 8, modem management module is to the path S1 of network management module, antenna management module is to the path S2 of network management module, the path S3 of handover module in modem management module to band, the path S4 of handover module in network management module to band, the path S5 of handover module in Satellite Management module to band, the path S6 of handover module in antenna management module to band, in band, handover module is to the path S7 of modem management module, Satellite Management module is to the path S8 of frequency spectrograph module, in band, handover module is to the path S9 of frequency spectrograph module, in band, handover module is to the path S10 of intelligent scheduling module, the path S11 of handover module in intelligent scheduling module to band, antenna management module is to the path S12 of log management module, Satellite Management module is to the path S13 of log management module, in band, handover module is to the path S14 of log management module, network management module is to the path S15 of log management module.
Embodiment
For enabling auditor understand structure of the present invention, feature and other objects further, be described in detail as follows.
Refer to Fig. 1, Fig. 1 is the structural framing figure of satellite communication network of the present invention management and intelligent dispatching system.As shown in Figure 1, satellite communication network management of the present invention and intelligent dispatching system comprise handover module 7 and log management module 8 in network management module 1, Satellite Management module 2, modem management module 3, antenna management module 4, frequency spectrograph module 5, intelligent scheduling module 6, band.
In the present invention, network management module 1, for managing each website in network, create, edit and delete, and for the state of checking each website and parameter information, and operates each website.Modem management module 3 for checking and monitor state, the parameter information of modulator-demodulator, and arranges and revises the parameter of modulator-demodulator.Therefore, as shown in the S1 in Fig. 1, modem management module 3 finds modem device of reaching the standard grade, and being stored to database, modem parameter reads by reading modem data storehouse parameter list and is presented in the network management interface of network management module 1 by network management module 1.
Antenna management module 4 is for creating antenna, Up/Down Conversion device and binding modem device to Up/Down Conversion device.Therefore, as shown in the S2 in Fig. 1, antenna management module 4 creates antenna equipment and is stored into database, and antenna equipment parameter to be read by the antenna equipment tables of data of reading antenna administration module 4 and is presented in the network management interface of network management module 1 by network management module 1.
In band, handover module 7 is for automatically making corresponding adjustment according to the change of state of affairs, and the communications status of high time delay low rate is switched to the communications status of low time delay two-forty; After having switched, link release bandwidth that satellite communication network of the present invention manages and intelligent dispatching system is dismantled automatically; Meanwhile, specify the website needing to switch according to specific needs and carry out manual switchover.Thus, as shown in the S3 in Fig. 1, modem management module 3 provides modem device parameter for being with interior handover module 7, and modem device parameter is used for carrying out carrier switch and relevant handover parameter calculating.For another example, shown in S7, after in band, handover module 7 switched carrier completes, the modem parameter that the switched carrier in modem management module 7 is relevant can carry out change and upgrade.
In addition, as shown in S4, network management module 1 builds virtual network and website, in the band of website, the carrier switch of handover module 7 is prepared.As shown at s 6, antenna management module 4 creates antenna, Up/Down Conversion device, for being with interior handover module 7 to provide frequency converter local frequency parameter, participates in the calculating of carrier switch relevant parameter.
Satellite Management module 2 of the present invention is for creating, revise and deleting satellite, transponder and frequency pool.Frequency spectrograph module 5 for showing carrier wave figure and relevant parameter information thereof after link establishment.Thus, as shown in the S5 in Fig. 1, Satellite Management module 2 provides satellite inversion frequency parameter for being with interior handover module 7, participates in the calculating of carrier switch relevant parameter.As stated in s 8, according to the frequency pool parameter information that Satellite Management module 2 creates, in frequency spectrograph module 5, display frequency pond visualization interface, is used for showing the waveform of switched carrier; For another example, shown in S9, after handover module 7 carries out carrier switch in band, the waveform of switched carrier will be shown in the frequency pool interface in frequency spectrograph module 5.
Intelligent scheduling module 6 for the priority adjustment bandwidth according to each website, and calculates the bandwidth range switching and use.As shown in S10 and S11, in band, handover module 7 carries out in carrier switching process, frequency pool scope of resource, carrier switch request handoff parameter and guaranteed rate parameter that intelligent scheduling module 6 provides according to handover module 7 in band, carry out the adjustment process (S10) of intelligent scheduling function, afterwards the carrier bandwidths after adjustment process is passed to handover module 7 in band, carry out carrier switch operation (S11).
Log management module 8, for recording the warning message of the operation information of all modules and the alarm of modulator-demodulator and Dynamic System mistake in satellite communication network of the present invention management and intelligent dispatching system.As shown in S12, S13, S14 and S15, log management module 8 is for recording and showing the various operations in antenna management module 4, Satellite Management module 2 and network management module 1, and for the specifying information of the various operation of recording and show in band in handover module 7 and carrier switch, described specifying information comprises the website sending carrier wave, the device address sending carrier wave, the data rate of switched carrier, modulation type, forward error correction code check, forward error correction type, IF spot, RF spot and power parameter information.
Furthermore, network management module 1 of the present invention comprises management function, the interior Prearranged elements of band in Distribution List functional unit, application handoff functionality unit, tactful defined function unit, with, diagnosis switches installation unit and diagnosis switches reset cell.
Distribution List functional unit in network management module 1 of the present invention is used for the subnet address arranging the other multiple website communicated with its foundation in network management module 1, automatically switch simultaneously in execution, the website link in the subnet address also automatically set up and define in described Distribution List functional unit.
Application handoff functionality unit in network management module 1 of the present invention is used for manually carrying out carrier switch operation, arranging the call parameter of carrier switch targeted sites and switched carrier, and sets up communication link between each website.
The policing parameter used when tactful defined function unit in network management module 1 of the present invention is for arranging switched carrier; When enabling the policing parameter set, satellite communication network of the present invention management and intelligent dispatching system automatically verify switching rate parameter value whether in the data rate ranges set by strategy definition when carrying out carrier switch; If in this data rate ranges, continue carrier switch, otherwise the management of described satellite communication network and intelligent dispatching system can stop handover operation, and provide prompting.
In with in network management module 1 of the present invention, management function is used for carrying out the setting of band intrinsic parameter to each website, and in with, management function comprises forward path setting unit and return path setting unit.Forward path setting unit is for arranging the parameter of modulator-demodulator and binding modulator and demodulator, and by arranging described parameter, the communication link that main website website is initiated and remote terminal are set up; Return path setting unit is for arranging the parameter of modulator-demodulator and binding modulator and demodulator, and by arranging described parameter, the communication link that remote terminal website is initiated and main website set up.Return path setting unit also comprises Prearranged elements in band, and in band, Prearranged elements is for arranging guarantee data rate parameter value and the relevant handover parameter of switched carrier; When website priority is lower than another website priority time, after carrier switch operation, the bandwidth that satellite communication network management of the present invention and intelligent dispatching system distribute to the low website of priority can not be less than the bandwidth value ensureing that data rate calculates, to ensure the service communication of the low website of described priority.
Diagnosis in network management module 1 of the present invention switches installation unit and is used for carrying out manual carrier switch, to detect the communication link treatment of current site and main website.
Diagnosis in network management module 1 of the present invention switches reset cell and switches for described diagnosis of dismantling the carrier link installed, and handoff parameter is reduced to the initial condition before switching.
In addition, refer to Fig. 2, Fig. 2 is the flow chart of the carrier switch method of satellite communication network of the present invention management and intelligent dispatching system.As shown in Figure 2, carrier switch method of the present invention comprises manual switchover and automatic switchover.
In carrier switch method of the present invention, manual switchover comprises the steps: that step 1) is manually arrange handoff parameter, carry out the foundation of communication link according to the handoff parameter arranged, described handoff parameter comprises data rate, forward error correction code check, modulation system and modulation type; Step 2) be transmission handoff parameter and application handover request, by satellite link, handoff parameter and application handover request are transferred to satellite communication network management and intelligent dispatching system; Step 3), for receiving and again transmitting data, utilizes satellite communication network manages and intelligent dispatching system receives handoff parameter and application handover request, carries out the foundation of communication link; After link establishment completes, and switch relevant modem device and pass through satellite link and manage and the current state information of intelligent dispatching system sending modem equipment and parameter information to satellite communication network in real time; Step 4) is for process and store data, utilize the data that modem device transmits, by data-mapping, the data of transmission are stored in database server, for satellite communication network management and the frequency spectrograph module 5 of intelligent dispatching system and modem management module 3 provide data source; Step 5) is for reading and display data, by frequency spectrograph module 5 by the digital independent that is stored in database server out, and in interface display carrier waveform and parameter values, described parameter values comprises initiates site name, distribution bandwidth, data rate, character rate, working method, launching electrical level, tranmitting frequency, by modem management module by the digital independent that is stored in database server out, show in real time in the list of modem management module 3; And step 6) is communication link of dismantling, release bandwidth resources, manually to dismantle ongoing satellite communication link, the instruction of link of dismantling to be sent to by satellite link and switches relevant modem device by satellite communication network management and intelligent dispatching system, after in each switching, modem device receives instruction, be altered to the original equipment parameter do not switched from handoff parameter, and discharge satellite bandwidth resource; Simultaneously, parameter information and the running status of current device is sent to satellite communication network management and intelligent dispatching system, satellite communication network management and intelligent dispatching system receive parameter information and the running status of modem device, upgrade system database and system interface parameter display.
The step automatically switched in carrier switch method of the present invention is: step a) is the information parameter arranging TOS value, needing the transmitting terminal carrying out the modem device automatically switched, the information parameter of identical TOS value is set, the span of TOS value carries out value between 0 ~ 253, numerical value is 0 ~ 63, wherein: the load of numerical value to be 0 be ECM switches, numerical value is 1 is predetermined switching, numerical value be 2 be audio frequency, numerical value be 3 be video, numerical value is 4 to 63, be system reserved field, 64 ~ 253 is user-defined numerical value, for the carrier switch of TOS value, the TOS information arranged in modem device, except arranging TOS value, also will arrange data rate parameter when carrier switch, switching type numerical value and time-out time, meanwhile, modem device institute terminal equipment is in a network being connected as visual telephone, the information parameter of the TOS value needing setting identical with modem device, step b) is that terminal carries out communication link foundation, and in network, terminal such as visual telephone carries out call conversation to carry out the foundation of communication link, and modem device detects default specific T OS value, step c) is transmission handoff parameter and application handover request, after modulator-demodulator detects default specific T OS value, by satellite link, handoff parameter and application handover request is transferred to satellite communication network management and intelligent dispatching system, step d), for receiving and again transmitting data, utilizes satellite communication network of the present invention manages and intelligent dispatching system receives described handoff parameter and application handover request, carries out the foundation of communication link, after link establishment completes, described to switch relevant modem device and pass through satellite link and manage and the current state information of intelligent dispatching system sending modem equipment and parameter information to satellite communication network of the present invention in real time, step e) is for process and store data, utilize the data that described modem device transmits, by data-mapping, the data of transmission are stored in database server, for the frequency spectrograph module 5 of satellite communication network of the present invention management and intelligent dispatching system and modem management module 3 provide data source, step f) is for reading and display data, by frequency spectrograph module 5 by the digital independent that is stored in described database server out, and in interface display carrier waveform and parameter values, described parameter values comprises initiates site name, distribution bandwidth, data rate, character rate, working method, launching electrical level and tranmitting frequency parameter, by modem management module 3 by the digital independent that is stored in described database server out, show in real time in the list of described modem management module, and step g) is communication link of dismantling, release bandwidth resources, described network-termination device such as visual telephone is hung up the telephone, namely to carry out dismantling the action of communication link, modem device in network can detect the link action of dismantling of terminal, send to satellite communication network management and intelligent dispatching system link request of dismantling by satellite link, after satellite communication network management and intelligent dispatching system are received by satellite link, the instruction of link of dismantling is sent to and switches relevant modem device, after in each switching, modem device receives instruction, the original equipment parameter do not switched is altered to from handoff parameter, and discharge satellite bandwidth resource, simultaneously, parameter information and the running status of current device is sent to satellite communication network management and intelligent dispatching system, satellite communication network management and intelligent dispatching system receive parameter information and the running status of described modem device, upgrade system database and system interface parameter display.
Therefore, satellite communication network management of the present invention and intelligent dispatching system place computer are connected by Ethernet with modem hardware, can obtain information and the state of hardware.When R1 station sends communication carrier action to R2 station, when wanting to set up communication link, hardware will send application handover request to satellite communication network management and intelligent dispatching system.Satellite communication network manages and after intelligent dispatching system process request, needs to calculate corresponding parameter to carry out the switching of carrier wave, namely set up the communication link between website.Comprise and need to calculate both sides on which frequency, with great data rate, transmitting terminal needs great transmitting power to launch the parameters such as carrier wave, meanwhile, needs to arrange corresponding modulation parameter, the parameters such as such as forward error correction code check, modulation type, modulation system.After all parameter manipulation complete, the parameter value calculating and set is sent to equipment, allow equipment carry out communicating between website according to calculating with the parameter set.Therefore, the computing formula of important parameter is just introduced below.
Data rate (DataRate) parameter, forward error correction code check (FECRate) parameter and modulation type (ModType) parameter in the packet that satellite communication network management of the present invention and intelligent dispatching system can be sent according to modulator-demodulator, calculate the bandwidth parameter launching carrier wave.General rolloff-factor gets 1.3.Formula is as follows:
BandWidth=(DataRate/ (ModType*FECRate)) * rolloff-factor
Bandwidth=(data rate/(the numerical value * forward error correction code check that modulation type is corresponding)) * rolloff-factor
Wherein, the numerical value that modulation type is corresponding is as follows:
BPSK：1；QPSK：2；OQPSK：2；8PSK：3；
8QAM：3；16QAM：4。
Such as, R1 station is 1000k to R2 station transmit data rate, and modulation type is QPSK, and forward error correction code check is the carrier wave of 3/4.So, need for this link assignment how many bandwidth?
Bandwidth=(1000/ (2*3/4)) * 1.3=866.667kHz
Therefore for this carrier link distributes the bandwidth resources of 866.667kHz.
In addition, radio frequency parameter in the packet that satellite communication network of the present invention management and intelligent dispatching system are sent according to modulator or demodulator device, the inversion frequency of corresponding satellite and the local frequency parameter of frequency converter calculate the intermediate frequency parameters of switched carrier.Because be that modulator sends, demodulator receives, and therefore both need just can communicate on same frequency, so both intermediate frequency parameters and radio frequency parameter are the same.But computing formula is different.
Demodulator device, calculates the formula of intermediate frequency parameters:
If frequency reversion attribute is unlocked, so, formula is:
Intermediate frequency parameters=this Zhen of frequency converter Pin Shuais – (She is Can Shuo – satellite inversion frequency frequently)
If frequency reversion attribute is not unlocked, so, formula is:
Intermediate frequency parameters=She Can Shuo – satellite conversion frequently Pin Shuais – frequency converter local frequency
Modulator device, calculates the formula of intermediate frequency parameters:
If frequency reversion attribute is unlocked, so, formula is:
Intermediate frequency parameters=this Zhen of frequency converter Pin Shuais – radio frequency parameter
If frequency reversion attribute is not unlocked, so, formula is:
Intermediate frequency parameters=She is Can Shuo – frequency converter local frequency frequently
Moreover the packet intermediate frequency parameters that satellite communication network management of the present invention and intelligent dispatching system are sent according to modulator or demodulator device, the inversion frequency of corresponding satellite and the local frequency parameter of frequency converter calculate the radio frequency parameter of switched carrier.
Demodulator device, calculates the formula of radio frequency parameter:
If frequency reversion attribute is unlocked, so, formula is:
Radio frequency parameter=this Zhen of frequency converter Pin Shuais – intermediate frequency parameters+satellite inversion frequency
If frequency reversion attribute is not unlocked, so, formula is:
Radio frequency parameter=intermediate frequency parameters+frequency converter local frequency+satellite inversion frequency
Modulator device, calculates the formula of radio frequency parameter:
If frequency reversion attribute is unlocked, so, formula is:
Radio frequency parameter=this Zhen of frequency converter Pin Shuais – intermediate frequency parameters
If frequency reversion attribute is not unlocked, so, formula is:
Radio frequency parameter=intermediate frequency parameters+frequency converter local frequency
The transmit power parameter needed for the calculating of carrier signal needs launched by modulator.Need before this to calculate the changes in data rate value of switched carrier and the Ebnt changing value of switched carrier.
Calculate the changes in data rate value of carrier wave according to the data rate of switched carrier and the data rate parameter of the front equipment initial condition of switching, formula is as follows:
Changes in data rate value=the 10*log of carrier wave 10(switched carrier data rate)-10*log 10(before switching original data rate).
According to the parameter combinations inquiry Ebnt table of switched carrier, switched Ebnt parameter value accordingly, then shown according to initial parameter query composition Ebnt before switching, obtained initial Ebnt parameter value.Calculate with these two parameter values, formula is as follows:
Ebnt changing value=initial Ebnt the parameter value of switching Ebnt Can Shuo Zhi – of switched carrier
Therefore, the parameter value completed according to above-mentioned calculating and original equipment performance number carry out the calculating of transmit power parameter, and formula is as follows:
The Ebnt changing value of the changes in data rate value+switched carrier of transmit power parameter=original equipment performance number+carrier wave.
Here, original equipment performance number is the signal intelligence according to the departure carrier communication situation of main website modulator-demodulator and small station burst immigration carrier wave, and that carries out the power parameter of modem device arranges adjustment, arranges an initial power parameter value.Preferably, original equipment performance number is-40dbm.
In addition, satellite communication network of the present invention management and intelligent dispatching system are set up communication link between website and are comprised and automatically set up communication link and manually set up communication link two kinds of modes.For automatically setting up for communication link, by the communication equipment in website as visual telephone, be connected on corresponding network, there is the modulator and demodulator equipment of each website in a network, like this, when carrying out calling out between website with visual telephone, satellite communication network management and intelligent dispatching system can receive the request of connecting, after process request, will communication link instruction be set up send to the modulator of current site, by modulator, carrier signal be sent.Receiving station receives carrier signal, and both sides carry out video calling.After both sides hang up the telephone, communication link is dismantled automatically, and transmitting terminal modulator and receiving terminal demodulator return to initial condition.For manually setting up for communication link, selecting the website needing communication, arrange relevant parameter in satellite communication network management and intelligent dispatching system, manual button click initiates the action of setting up communication link.Manual cancellation communication, satellite communication network management and intelligent dispatching system will be dismantled current communication link.Transmitting terminal modulator and receiving terminal demodulator return to initial condition.Manually set up communication link and be equivalent to detection method, before formally communicating with Target Station, look at whether communication link can normally be set up.
Therefore, when in same satellite repeater frequency pool bandwidth resources, when having multiple communication service to carry out, satellite communication network management of the present invention and intelligent dispatching system can perform distribution according to need, adjust the bandwidth resources that each communication service should distribute.Such as, the bandwidth resources of satellite repeater frequency pool are 1MHz, R1 sets up communication link to Hub main website in station and carries out service communication, set up the parameter of link for launching carrier signal data speed (DataRate) 1000kbps, forward error correction code check (FECRate) is 3/4, the guaranteed rate that modulation type (ModeType) sets for QPSK, R1 station is 300kbps.So, the bandwidth value needing to distribute can be calculated by these parameters.
R1 bandwidth=(DataRate/(FECRate*ModType)) * rolloff-factor
=（1000k/（（3/4）*2））*1.3=866.667kHz
Now, R2 also carries out communication service by the resource of frequency pool in station, set up the parameter of link for launching carrier signal data speed (DataRate) 1000kbps, forward error correction code check (FECRate) is 3/4, modulation type (ModeType) is QPSK, the guaranteed rate of R2 station setting is 300kbps, QPSK, 3/4.And the priority at R2 station is higher than R1 station.So, for the bandwidth value of the link assignment at R2 station should be:
R2 bandwidth=(DataRate/(FECRate*ModType)) * rolloff-factor
=（1000k/（（3/4）*2））*1.3=866.667kHz
The bandwidth resources of frequency pool only have 1000kHz, and have given R1 station 866.667kHz, and frequency pool is remaining 133.333kHz bandwidth also, just the demand of inadequate R2 station 866.667kHz bandwidth.But the priority that the priority ratio R1 at R2 station stands is high, so, the bandwidth resources that satellite communication network management and intelligent dispatching system can be stood required for priority allocation to R2.But R1 station is provided with guarantee data rate, so for R1 station, first check the parameters such as the guaranteed rate of the setting at R1 station, guaranteed rate numerical value is 300kbps, and forward error correction code check is 3/4, and modulation type is QPSK.The minimum guarantee bandwidth numerical value needing to distribute to R1 station is calculated according to these parameters.
Minimum guarantee bandwidth=(300k/((3/4) * 2 that R1 distributes at station)) * 1.3=260kHz
So the 866.667kHz Bandwidth adjustment that original R1 stands by system is the 260kHz bandwidth under guarantee data rate.So, for R2 station, all bandwidth resources be left in frequency pool are all given R2 station by system, namely,
R2 stands bandwidth=1000kHz – 260kHz=740kHz
Under the prerequisite of service communication ensureing the low website of priority, the bandwidth resources maximum to the website that priority is high are used for important service communication.
This allocated bandwidth mode can improve bandwidth resources utilization ratio, makes priority high, important, and urgent communication service can obtain best communication bandwidth, ensures best communication quality.
In sum, satellite communication network management of the present invention and intelligent dispatching system have the following advantages: (1) is carrier switch automatically.Automatically switch according to the service conditions of user and loading condition; Also can automatically switch according to user-defined application strategy; (2) manual carrier switch.User according to circumstances manually sets up the communication link between website, and link of manually dismantling is to discharge bandwidth resources; (3) spectrum management.By the communication carrier between Virtual Spectrum Analyzer display website, and the parameter information such as the bandwidth relevant to carrier wave, speed; (4) intelligent scheduling.Satellite communication network management and intelligent dispatching system can adjust according to the use of priority to bandwidth of each website automatically, calculate the bandwidth resources needed for switching, the service bandwidth that compression priority is low, to the traffic assignments enough bandwidth resource that priority is high; (5) system flexibility is high.Supporting multiple-working mode, when there is extreme case, the working method of emergency circuit can be changed neatly, ensure that communication is normal; (6) system reliability is high.The expansion of frequency pool only relates to the setting operation in main website satellite communication network management and intelligent dispatching system upper frequency pond, do not relate to the amendment of satellite communication network management and any communication equipment parameter of intelligent dispatching system, more do not need the running parameter revising remote terminal.Doing so avoids and to revise the satellite communication network management and intelligent dispatching system hidden danger that remote terminal parameter brings because adding frequency pool.
It is to be understood that foregoing invention content is intended to the practical application proving technical scheme provided by the present invention, should not be construed as limiting the scope of the present invention.Those skilled in the art in spirit of the present invention and principle, when doing various amendment, equivalent replace or improve.Protection scope of the present invention is as the criterion with appended claims.

Claims (19)

1. can realize setting up communication link between website and effectively utilize satellite communication network management and the intelligent dispatching system of satellite repeater resource, described satellite communication network management and intelligent dispatching system comprise:
Network management module, for managing each website in network, create, edit and delete, and for the state of checking each website and parameter information, and operates each website;
Satellite Management module, for creating, revise and deleting satellite, transponder and frequency pool;
Modem management module, for checking and monitor state, the parameter information of modulator-demodulator, and arranges and revises the parameter of modulator-demodulator;
Antenna management module, for creating antenna, Up/Down Conversion device and binding modem device to Up/Down Conversion device;
Frequency spectrograph module, for showing carrier wave figure and relevant parameter information thereof after link establishment;
Intelligent scheduling module, for the priority adjustment bandwidth according to each website, and calculates the bandwidth range switching and use;
Handover module in band, for automatically making corresponding adjustment according to the change of state of affairs, and switches to the communications status of low time delay two-forty by the communications status of high time delay low rate; After having switched, link release bandwidth that described satellite communication network manages and intelligent dispatching system is dismantled automatically; Meanwhile, specify the website needing to switch according to specific needs and carry out manual switchover; And
Log management module, for recording the warning message of the operation information of all modules and the alarm of modulator-demodulator and Dynamic System mistake in the management of described satellite communication network and intelligent dispatching system.
2. satellite communication network management according to claim 1 and intelligent dispatching system, is characterized in that,
Described modem management module finds modem device of reaching the standard grade, and being stored to database, modem parameter reads by reading modem data storehouse parameter list and is presented in the network management interface of described network management module by described network management module;
Described antenna management module creation antenna equipment is also stored into database, and antenna equipment parameter is read by the antenna equipment tables of data reading described antenna management module and is presented in the network management interface of described network management module by described network management module;
Described modem management module provides modem device parameter for handover module in described band, and described modem device parameter is used for carrying out carrier switch and relevant handover parameter calculates; Described network management module builds virtual network and website, in the band of website, the carrier switch of handover module is prepared; Described Satellite Management module creation satellite, transponder and frequency pool, for handover module in described band provides satellite inversion frequency parameter, participate in the calculating of carrier switch relevant parameter; Described antenna management module creation antenna, Up/Down Conversion device, for handover module in described band provides frequency converter local frequency parameter, participate in the calculating of carrier switch relevant parameter;
After in described band, handover module switched carrier completes, the modem parameter that the switched carrier in described modem management module is relevant can carry out change and upgrade;
According to the frequency pool parameter information of described Satellite Management module creation, in described frequency spectrograph module, display frequency pond visualization interface, is used for showing the waveform of switched carrier;
After handover module carries out carrier switch in described band, the waveform of switched carrier will be shown in the frequency pool interface in described frequency spectrograph module;
In described band, handover module carries out in carrier switching process, the frequency pool scope of resource that described intelligent scheduling module provides according to handover module in described band, carrier switch request handoff parameter and guaranteed rate parameter, carry out the adjustment process of intelligent scheduling function, afterwards the carrier bandwidths after adjustment process is passed to handover module in described band, carry out carrier switch operation;
Described log management module is for recording and showing the various operations in antenna management module, Satellite Management module and network management module, and for the specifying information of the various operation of recording and show in band in handover module and carrier switch, described specifying information comprises the website sending carrier wave, the device address sending carrier wave, the data rate of switched carrier, modulation type, forward error correction code check, forward error correction type, IF spot, RF spot and power parameter information.
3. satellite communication network management according to claim 1 and intelligent dispatching system, it is characterized in that, described network management module comprises management function, the interior Prearranged elements of band in Distribution List functional unit, application handoff functionality unit, tactful defined function unit, with, diagnosis switches installation unit and diagnosis switches reset cell.
4. satellite communication network management according to claim 3 and intelligent dispatching system, it is characterized in that, described Distribution List functional unit is used for the subnet address arranging the other multiple website communicated with its foundation in network management module, automatically switch simultaneously in execution, the website link in the subnet address also automatically set up and define in described Distribution List functional unit.
5. satellite communication network management according to claim 3 and intelligent dispatching system, it is characterized in that, described application handoff functionality unit is used for manually carrying out carrier switch operation, arranging the call parameter of carrier switch targeted sites and switched carrier, and sets up communication link between each website.
6. satellite communication network management according to claim 3 and intelligent dispatching system, is characterized in that, the policing parameter used when described tactful defined function unit is for arranging switched carrier; When enabling the policing parameter set, the management of described satellite communication network and intelligent dispatching system automatically verify switching rate parameter value whether in the data rate ranges set by strategy definition when carrying out carrier switch; If in this data rate ranges, continue carrier switch, otherwise the management of described satellite communication network and intelligent dispatching system can stop handover operation, and provide prompting.
7. satellite communication network management according to claim 3 and intelligent dispatching system, it is characterized in that, in described with, management function is used for carrying out the setting of band intrinsic parameter to each website, and in described with, management function comprises forward path setting unit and return path setting unit.
8. satellite communication network management according to claim 7 and intelligent dispatching system, it is characterized in that, described forward path setting unit is for arranging the parameter of modulator-demodulator and binding modulator and demodulator, by arranging described parameter, the communication link that main website website is initiated and remote terminal are set up; Described return path setting unit is for arranging the parameter of modulator-demodulator and binding modulator and demodulator, and by arranging described parameter, the communication link that remote terminal website is initiated and main website set up.
9. satellite communication network management according to claim 8 and intelligent dispatching system, it is characterized in that, described return path setting unit also comprises Prearranged elements in band, and in described band, Prearranged elements is for arranging guarantee data rate parameter value and the relevant handover parameter of switched carrier; When website priority is lower than another website priority time, after carrier switch operation, the bandwidth that described satellite communication network management and intelligent dispatching system distribute to the low website of priority can not be less than the bandwidth value ensureing that data rate calculates, to ensure the service communication of the low website of described priority.
10. satellite communication network management according to claim 3 and intelligent dispatching system, is characterized in that, described diagnosis switches installation unit and is used for carrying out manual carrier switch, to detect the communication link treatment of current site and main website.
11. satellite communication network management according to claim 3 and intelligent dispatching systems, is characterized in that, described diagnosis switches reset cell and switches for described diagnosis of dismantling the carrier link installed, and handoff parameter is reduced to the initial condition before switching.
12. satellite communication network management according to claim 3 and intelligent dispatching systems, is characterized in that, described satellite communication network management and the intelligent dispatching system communication link set up between website comprise automatically to be set up communication link and manually sets up communication link; Wherein,
Described communication link of automatically setting up comprises: by the communication equipment in website, be connected on corresponding network, there is the modulator and demodulator equipment of each website in a network, like this, when carrying out calling out between website with visual telephone, described satellite communication network management and intelligent dispatching system can receive the request of connecting, after process request, to communication link instruction be set up send to the modulator of current site, by modulator, carrier signal be sent; Receiving station receives carrier signal, and both sides carry out video calling; After both sides hang up the telephone, communication link is dismantled automatically, and transmitting terminal modulator and receiving terminal demodulator return to initial condition;
Described communication link of manually setting up comprises: the website selecting needs communication in described satellite communication network management and intelligent dispatching system, arranges relevant parameter, and manual button click initiates the action of setting up communication link; Manual cancellation communication, described satellite communication network management and intelligent dispatching system will be dismantled current communication link; Transmitting terminal modulator and receiving terminal demodulator return to initial condition; Before formally communicating with Target Station, check whether communication link can normally be set up.
13. satellite communication network management according to claim 12 and intelligent dispatching systems, it is characterized in that, described communication equipment is visual telephone.
14. 1 kinds can realize setting up communication link between website and effectively utilize the satellite communication network management of satellite repeater resource and the carrier switch method of intelligent dispatching system, and described carrier switch method comprises manual switchover and automatic switchover;
Described manual switchover comprises the steps:
(1-1) manually arrange handoff parameter, carry out the foundation of communication link according to the handoff parameter arranged, described handoff parameter comprises data rate, forward error correction code check, modulation system and modulation type;
(1-2) transmit described handoff parameter and application handover request, by satellite link, described handoff parameter and application handover request are transferred to the management of described satellite communication network and intelligent dispatching system;
(1-3) receive and again transmit data, utilizing described satellite communication network manages and intelligent dispatching system receives described handoff parameter and application handover request, carry out the foundation of communication link; After link establishment completes, and switch relevant modem device and pass through satellite link and manage and the current state information of intelligent dispatching system sending modem equipment and parameter information to described satellite communication network in real time;
(1-4) process and storage data, utilize the data that described modem device transmits, by data-mapping, the data of transmission are stored in database server, for the frequency spectrograph module of the management of described satellite communication network and intelligent dispatching system and modem management module provide data source; And
(1-5) read and show data, by described frequency spectrograph module by the digital independent that is stored in described database server out, and in interface display carrier waveform and parameter values, described parameter values comprises initiates site name, distribution bandwidth, data rate, character rate, working method, launching electrical level, tranmitting frequency, by described modem management module by the digital independent that is stored in described database server out, show in real time in the list of described modem management module; And
(1-6) to dismantle communication link, release bandwidth resources, manually to dismantle ongoing satellite communication link, the instruction of link of dismantling to be sent to by satellite link and switches relevant modem device by the management of described satellite communication network and intelligent dispatching system, after in each switching, modem device receives instruction, be altered to the original equipment parameter do not switched from handoff parameter, and discharge satellite bandwidth resource; Simultaneously, parameter information and the running status of current device is sent to described satellite communication network management and intelligent dispatching system, described satellite communication network management and intelligent dispatching system receive parameter information and the running status of described modem device, upgrade system database and system interface parameter display;
Described automatic switchover comprises the steps:
(2-1) information parameter of TOS value is set, needing the transmitting terminal carrying out the modem device automatically switched, the information parameter of identical TOS value is set; The span of TOS value carries out value between 0 ~ 253; Numerical value is 0 ~ 63, wherein: the load of numerical value to be 0 be ECM switches, and numerical value is 1 is predetermined switching, numerical value be 2 be audio frequency, numerical value be 3 be video, numerical value be 4 to 63 be all system reserved field; 64 ~ 253 is user-defined numerical value, for the carrier switch of TOS value; The TOS information arranged in modem device, except arranging TOS value, also will arrange data rate parameter when carrier switch, switching type numerical value and time-out time; Meanwhile, modem device institute terminal equipment is in a network being connected, the information parameter of the TOS value needing setting identical with modem device;
(2-2) terminal carries out communication link foundation, and the terminal equipment in network carries out call conversation to carry out the foundation of communication link, and modem device detects default specific T OS value;
(2-3) transmit handoff parameter and application handover request, after modulator-demodulator detects default specific T OS value, by satellite link, handoff parameter and application handover request are transferred to satellite communication network management and intelligent dispatching system;
(2-4) receive and again transmit data, utilizing described satellite communication network manages and intelligent dispatching system receives described handoff parameter and application handover request, carry out the foundation of communication link; After link establishment completes, described to switch relevant modem device and pass through satellite link and manage and the current state information of intelligent dispatching system sending modem equipment and parameter information to described satellite communication network in real time;
(2-5) process and storage data, utilize the data that described modem device transmits, by data-mapping, the data of transmission are stored in database server, for the frequency spectrograph module of the management of described satellite communication network and intelligent dispatching system and modem management module provide data source; And
(2-6) read and show data, by described frequency spectrograph module by the digital independent that is stored in described database server out, and in interface display carrier waveform and parameter values, described parameter values comprises initiates site name, distribution bandwidth, data rate, character rate, working method, launching electrical level and tranmitting frequency parameter; By described modem management module by the digital independent that is stored in described database server out, show in real time in the list of described modem management module; And
(2-7) to dismantle communication link, release bandwidth resources, terminal equipment in network is hung up the telephone, namely to carry out dismantling the action of communication link, modem device in network can detect the link action of dismantling of terminal, send to satellite communication network management and intelligent dispatching system link request of dismantling by satellite link, after satellite communication network management and intelligent dispatching system are received by satellite link, the instruction of link of dismantling is sent to and switches relevant modem device, after in each switching, modem device receives instruction, the original equipment parameter do not switched is altered to from handoff parameter, and discharge satellite bandwidth resource, simultaneously, parameter information and the running status of current device is sent to satellite communication network management and intelligent dispatching system, satellite communication network management and intelligent dispatching system receive parameter information and the running status of described modem device, upgrade system database and system interface parameter display.
15. carrier switch methods according to claim 14, is characterized in that, described terminal equipment is visual telephone.
16. carrier switch methods according to claim 14, it is characterized in that, data rate DataRate parameter, forward error correction code check FECRate parameter and modulation type ModType parameter in the packet that the management of described satellite communication network and intelligent dispatching system are sent according to modem device, calculate the bandwidth parameter launching carrier wave according to formula (1):
Bandwidth=[data rate/(the numerical value * forward error correction code check that modulation type is corresponding)] * rolloff-factor (1)
Wherein, rolloff-factor=1.3;
The numerical value that modulation type is corresponding is as follows:
BPSK：1；QPSK：2；OQPSK：2；8PSK：3；
8QAM：3；16QAM：4。
17. carrier switch methods according to claim 14, it is characterized in that, the local frequency of radio frequency parameter, corresponding satellite inversion frequency and frequency converter in the packet that the management of described satellite communication network and intelligent dispatching system are sent according to modulator device or demodulator device, calculates the intermediate frequency parameters of switched carrier according to formula (2), (3), (4) or (5); Wherein:
If frequency reversion attribute is unlocked, calculate the intermediate frequency parameters of demodulator device according to formula (2):
This Zhen Pin of intermediate frequency parameters=frequency converter Shuais – (She is Can Shuo – satellite inversion frequency frequently) (2)
If frequency reversion attribute is not unlocked, calculate the intermediate frequency parameters of demodulator device according to formula (3):
Intermediate frequency parameters=She Can Shuo – satellite conversion frequently Pin Shuais – frequency converter local frequency (3)
If frequency reversion attribute is unlocked, calculate the intermediate frequency parameters of modulator device according to formula (4):
Intermediate frequency parameters=this Zhen of frequency converter Pin Shuais – radio frequency parameter (4)
If frequency reversion attribute is not unlocked, calculate the intermediate frequency parameters of modulator device according to formula (5):
Intermediate frequency parameters=She is Can Shuo – frequency converter local frequency (5) frequently.
18. carrier switch methods according to claim 14, it is characterized in that, the local frequency parameter of packet intermediate frequency parameters, corresponding satellite inversion frequency and frequency converter that the management of described satellite communication network and intelligent dispatching system are sent according to modulator or demodulator device, calculates the radio frequency parameter of switched carrier according to formula (6), (7), (8) or (9); Wherein:
If frequency reversion attribute is unlocked, calculate the radio frequency parameter of demodulator device according to formula (6):
Radio frequency parameter=this Zhen of frequency converter Pin Shuais – intermediate frequency parameters+satellite inversion frequency (6)
If frequency reversion attribute is not unlocked, calculate the radio frequency parameter of demodulator device according to formula (7):
Radio frequency parameter=intermediate frequency parameters+frequency converter local frequency+satellite inversion frequency (7)
If frequency reversion attribute is unlocked, calculate the radio frequency parameter of modulator device according to formula (8):
Radio frequency parameter=this Zhen of frequency converter Pin Shuais – intermediate frequency parameters (8)
If frequency reversion attribute is not unlocked, calculate the radio frequency parameter of modulator device according to formula (9):
Radio frequency parameter=intermediate frequency parameters+frequency converter local frequency (9).
19. carrier switch methods according to claim 14, is characterized in that, first calculate the changes in data rate value of switched carrier and the Ebnt changing value of switched carrier, then calculate the transmit power parameter of modulator transmitting needed for carrier signal; Wherein:
1) according to the data rate of switched carrier and the data rate of the front initial condition of switching, the changes in data rate value of switched carrier is calculated according to formula (10):
Changes in data rate value=the 10*log of switched carrier 10(the data rate) – 10*log of switched carrier 10(switching the data rate of front initial condition) (10);
2) according to switching Ebnt parameter value and initial Ebnt parameter value, the Ebnt changing value of switched carrier is calculated according to formula (11); Wherein, according to the parameter combinations inquiry Ebnt table of switched carrier, switched Ebnt parameter value accordingly, then shown according to initial parameter query composition Ebnt before switching, obtained corresponding initial Ebnt parameter value;
Ebnt changing value=initial Ebnt the parameter value (11) of switching Ebnt Can Shuo Zhi – of switched carrier
3) according to the changes in data rate value of original equipment performance number, switched carrier and the Ebnt changing value of switched carrier, transmit power parameter is calculated according to formula (12):
The Ebnt changing value (12) of the changes in data rate value+switched carrier of transmit power parameter=original equipment performance number+switched carrier.
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